supply of common laboratory reagents, chemicals and solvents , sodium thiosuphate pentahydrate extrapure, ar 99.5% , starch soluble extrapure, ar , hydrochloric acid, 37% , ammonium thiocyanate, extrapure ar, acs, 99% , ferric chloride, anhydrous pure, 98% , aluminium foil , barium diphenylamine sulfonate indicator, extrapure ar , ortho phosphoric acid, extrapure ar, acs, 85% , conc. sulfuric acid , fused calcium chloride pure, 90%-95% , ammonium hydroxide, ar, 25% , ammonium chloride, extrapure, 99.5% , oxallic acid extrapurear, 99.5% , sodium hydroxide beads , phenolopthaleinindiactorextrapurear, acs , benzoic acid extrapure acs, 99.9% , vaniline ( vanillin ) extrapur ar, 99% , ammonium nitrate , sodium nitrite , propionic acid , chromic oxide , benzophenone extrapure, 99% , manganese sulphate extrapure ar, 99% , manganese acetate tetrahydrate extrapure, ar, 99% , potassium bromate pure, 99.5% , potassium permanganate extrapure ar, 99.5% , phenol extrapure ar, 99.5% , pyridine extrapure, 99% , silver nitrate extrapure ar. 99.9% , sodium sulphate anhydrous ar, acs, 99.5% , sodium acetate , l - lysine , sodium chloride , active aluminium oxide , 2, 4-dnp , n, n dimethyl formide , nitric acid , acetamide , toluene, ar , pet-ether, ar , ethanol , acetone, ar , coumarin , dichlorometaneextrapure ar, 99.5% , methanol, electrinics grade, 99.8% , ethyl acetate ar , silica gel 60-120 mesh, for, column chromatography, , tetrahydrofuran ( stabilized ) extrapure ar, 99.5%